package Package.Test;

public class Student implements Comparable<Student> {
    private String name;
    private int age;
    public Student() {
    }
    public Student(String name, int age) {
        this.name = name;
        this.age = age;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Student student = (Student) o;
        if (age != student.age) return false;
        return name != null ? name.equals(student.name) : student.name ==null;}
    @Override
    public int hashCode() {
        int result = name != null ? name.hashCode() : 0;
        result = 31 * result + age;
        return result;
    }

    @Override
    public int compareTo(Student o) {

//        为0的只会存储一个对象，为一会存储两个对象，为-1会倒序
//        return 1;
    int num=this.age-o.age;
        num= num==0?this.name.compareTo(o.name):num;
    return  num;

    }
}